<?php

namespace App\Services\Exam;

use App\Models\ExamAccessLogModel;
use App\Models\ExamSubjectsModel;
use App\Models\ActionLogModel;
use App\Services\BaseService;
use App\Services\RedisService;

/**
 * 课程管理-服务类
 * Class SubjectService
 */
class SubjectService extends BaseService
{
    protected static $instance = null;
    protected $model = null;

    public function __construct()
    {
        $this->model = new ExamSubjectsModel();
    }

    /**
     * 静态入口
     */
    public static function make()
    {
        if (!self::$instance) {
            self::$instance = new SubjectService();
        }
        return self::$instance;
    }

    /**
     * 获取课程列表
     */
    public function customList($param, $pageSize = 15)
    {
        $query = $this->model->where('mark', operator: 1);

        if (!empty($param['type'])) {
            $query->where('type', $param['type']);
        }

        if (!empty($param['attr_type'])) {
            $query->where('attr_type', $param['attr_type']);
        }

        if (!empty($param['keyword'])) {
            $query->where(function ($q) use ($param) {
                $q->where('id', $param['keyword'])
                    ->orWhere('subject_name', 'like', "%{$param['keyword']}%")
                    ->orWhere('description', 'like', "%{$param['keyword']}%");
            });
        }

        $list = $query->orderBy('sort', 'desc')->paginate($pageSize > 0 ? $pageSize : 9999999);
        $list = $list ? $list->toArray() : [];
        return [
            'pageSize' => $pageSize,
            'total' => isset($list['total']) ? $list['total'] : 0,
            'list' => isset($list['data']) ? $list['data'] : []
        ];
    }

    /**
     * 获取课程详情
     */
    public function getInfo($id)
    {
        $data = $this->model->findOrFail($id);
        return message("操作成功", true, $data);
    }

    /**
     * 删除课程（逻辑删除）
     */
    public function remove($id)
    {
        $subject = $this->model->findOrFail($id);
        $subject->mark = 0;
        $subject->save();
        return message("删除成功", true);
    }

    /**
     * 启用/禁用课程
     */
    public function changeStatus($id, $status)
    {
        $subject = $this->model->findOrFail($id);
        $subject->status = $status;
        $subject->save();
        return message("状态更新成功", true, $subject);
    }

    /**
     * 用户选项
     * @return array
     */
    public function options()
    {
        // 获取参数
        $param = request()->all();
        // 用户ID
        $keyword = getter($param, "keyword");
        $sceneType = getter($param, "scene_type");
        $type = getter($param, "type");
        $attrType = getter($param, "attr_type");
        $datas = $this->model
            ->where('status', '=', 1)
            ->where('mark', '=', 1)
            ->where(function ($query) use ($keyword, $sceneType, $type, $attrType) {
                if ($keyword) {
                    $query->where('subject_name', 'like', "%{$keyword}%");
                }
                if ($type) {
                    $query->where('type', '=', $type);
                }
                if ($attrType) {
                    $query->where('attr_type', '=', $attrType);
                }
            })
            ->select(['subject_name', 'id'])
            ->orderBy('sort','desc')
            ->orderBy('id','asc')
            ->get();

        return $datas ? $datas->toArray() : [];
    }

    /**
     * 科目分组列表
     * @param int $type 2-对口，3-专升本
     * @return array|mixed
     */
    public function getListByAttrType($type=0,$sceneType=0, $sc=1)
    {
        $cacheKey = "caches:exam:subjects:{$type}";
        $datas = RedisService::get($cacheKey);
        // 分类入口访问统计
        if (empty($sc)) {
            ExamAccessLogModel::saveLog(date('Y-m-d'), $type, $sceneType);
        }
        if($datas){
            return $datas;
        }

        $where = ['type'=>1,'status'=>1,'mark'=>1];
        if($type>0){
            $where['type'] = $type;
        }else{
            unset($where['type']);
        }
        $datas = $this->model->where($where)
            ->select(['id','subject_name','icon','pid','type','description','attr_type','status'])
            ->orderBy('sort','desc')
            ->orderBy('id','asc')
            ->get();
        $datas = $datas? $datas->toArray() : [];
        $list = [];
        if($datas){
            foreach ($datas as $item){
                $attrType = isset($item['attr_type'])? $item['attr_type'] : 0;
                $list[$attrType][] = $item;
            }
            RedisService::set($cacheKey, $list, rand(300, 600));
        }

        return $list;
    }

    /**
     * 删除七天之前标记软删除的数据
     */
    public function delete()
    {
        // 设置日志标题
        ActionLogModel::setRecord(session('userId'), ['type' => 1, 'title' => "删除科目信息", 'content' => json_encode(request()->post(), 256), 'module' => 'admin']);
        ActionLogModel::record();
        $this->model->where('mark', 0)->where('update_time', '<=', time() - 7 * 86400)->delete();
        return parent::delete();
    }
}